Remove ulog.Logger.Print -- unused in u-root and dhcp.

ulog/log.go

@@ -16,7 +16,6 @@ import "log"
 // It puts your information somewhere for safekeeping.
 type Logger interface {
 	Printf(format string, v ...interface{})
-	Print(v ...interface{})
 }
 
 // Log is a Logger that prints to the log package's default logger.
@@ -27,8 +26,5 @@ type emptyLogger struct{}
 // Printf implements Logger.Printf.
 func (emptyLogger) Printf(format string, v ...interface{}) {}
 
-// Print implements Logger.Print.
-func (emptyLogger) Print(v ...interface{}) {}
-
 // Null is a logger that prints nothing.
 var Null Logger = emptyLogger{}

ulog/ulogtest/log.go

@@ -18,8 +18,3 @@ type Logger struct {
 func (tl Logger) Printf(format string, v ...interface{}) {
 	tl.TB.Logf(format, v...)
 }
-
-// Print formats according the default formats for v and prints to a unit test's log.
-func (tl Logger) Print(v ...interface{}) {
-	tl.TB.Log(v...)
-}